* '''encoding''': BaseX tries to guess the input encoding but this can be overwritten by the user if necessary.
* '''files''': Not supported as input documents are piped directly to the XML parser.
* '''method''': Set to 'xml' as default. If this is set to 'html'
for instance ending tags may be missing f.i.
* '''version''': Dismissed, as TagSoup always falls back to 'version 1.0', no matter what the input is.
* '''standalone''': Deactivated.